SCH8O/DIN CPVC Pressure Pipes

Key points of CPVC pressure pipe installation and welding technology: avoid common construction defects

CPVC (chlorinated polyvinyl chloride) pressure pipe is widely used in many industries, including CPVC Pipe Safe Drinking Water, CPVC Pipe Industrial Water Treatment, CPVC Pipe Industrial Wastewater, etc., due to its excellent corrosion resistance, high temperature resistance (up to 90°C) and safety and sanitation performance. However, improper installation and welding may lead to problems such as leakage and reduced strength. The following are key construction points and industry application precautions:

1. Material pretreatment and storage
Dry and clean: Before welding, the surface of CPVC pipe must be free of oil and dust, especially when used in high-purity industries such as CPVC Pipe Electronic Semiconductor and CPVC Pipe Medicine, to avoid contamination.
Avoid exposure to the sun: Long-term ultraviolet radiation will reduce the strength of CPVC, and sunshade measures must be taken in outdoor applications such as CPVC Pipe Photovoltaic.

2. Cutting and beveling
Use special cutting tools: ensure that the cut is smooth to prevent gaps during welding.
Deburring: Especially when used in CPVC Pipe Drinking Water systems, burrs may breed bacteria or affect flow.

3. Key technologies for solvent welding
Use special glue for CPVC: Ordinary PVC glue is not suitable and may result in insufficient welding strength.
Apply evenly: Apply the socket and spigot quickly and evenly to avoid glue accumulation or insufficient glue.
Do not rotate after insertion: Rotation will cause uneven glue distribution and affect sealing, which is especially important in high-pressure systems such as CPVC Pipe Nuclear Power.

4. Thermal expansion and support design
Consider thermal elongation: CPVC has a high thermal expansion coefficient, and expansion joints or flexible joints need to be reserved in high-temperature environments such as CPVC Pipe Metallurgy.
Reasonable support settings: Avoid pipe sagging, especially when transporting CPVC Pipe Industrial Wastewater over long distances.

5. Pressure test and acceptance
24-hour pressure test: ensure no leakage, especially the CPVC Pipe Safe Drinking Water system must meet the hygiene standards.
Avoid sudden pressure rise: gradually increase the pressure to prevent the weld from bursting if it is not fully cured.

Special requirements for the industry
High cleanliness industry (such as electronics and medicine): ultrapure water flushing is required after installation to ensure no residual solvent.
Corrosive media (such as industrial wastewater and metallurgy): select CPVC pipes with higher pressure ratings and regularly check the aging of the welds.